Calculator: calculate the annual simple flat interest rate to negociate in order to earn a certain simple flat rate interest on the principal (money starting amount) by duration and additional transaction fees

Calculator: annual simple interest rate to negociate to earn a certain interest

Annual simple flat interest rate = (Simple flat rate interest × Number of days in a year) ÷ (Principal × Duration in days)

Latest calculated annual simple flat interest rates

Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 8,552 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 1.4 units (Dollar, Euro, Pound, etc.), from date: Sep 07, 2018, to date: Oct 07, 2018, namely for a period of 30 days if the commission fee (withdrawal or payment) is 0%.Oct 18 00:07 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 13,700 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 6,300 units (Dollar, Euro, Pound, etc.), from date: Jul 26, 2017, to date: Jul 26, 2019, namely for a period of 730 days (24 Months) if the commission fee (withdrawal or payment) is 0%.Oct 18 00:00 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 8,500 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 200 units (Dollar, Euro, Pound, etc.), from date: Jul 03, 2016, to date: Aug 03, 2017, namely for a period of 396 days (13 Months) if the commission fee (withdrawal or payment) is 1%.Oct 17 23:53 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 4,000 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 7,000 units (Dollar, Euro, Pound, etc.), from date: Mar 25, 2017, to date: Apr 25, 2027, namely for a period of 3,683 days (121 Months) if the commission fee (withdrawal or payment) is 0%.Oct 17 23:47 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 4,000 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 7,000 units (Dollar, Euro, Pound, etc.), from date: Mar 25, 2017, to date: Apr 25, 2027, namely for a period of 3,683 days (121 Months) if the commission fee (withdrawal or payment) is 0%.Oct 17 22:51 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 50,000 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 4 units (Dollar, Euro, Pound, etc.), from date: Nov 15, 2017, to date: Nov 15, 2022, namely for a period of 1,826 days (60 Months) if the commission fee (withdrawal or payment) is 0%.Oct 17 22:49 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 20,000 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 6,300 units (Dollar, Euro, Pound, etc.), from date: Jul 26, 2017, to date: Jul 26, 2019, namely for a period of 730 days (24 Months) if the commission fee (withdrawal or payment) is 0%.Oct 17 22:45 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 10,000 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 2.25 units (Dollar, Euro, Pound, etc.), from date: Jan 19, 2017, to date: Feb 19, 2018, namely for a period of 396 days (13 Months) if the commission fee (withdrawal or payment) is 0%.Oct 17 22:38 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 40,000 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 40,000 units (Dollar, Euro, Pound, etc.), from date: Oct 01, 2007, to date: Feb 01, 2018, namely for a period of 3,776 days (124 Months) if the commission fee (withdrawal or payment) is 0%.Oct 17 22:23 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 10,500 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 5,000 units (Dollar, Euro, Pound, etc.), from date: Feb 03, 2017, to date: Feb 03, 2022, namely for a period of 1,826 days (60 Months) if the commission fee (withdrawal or payment) is 0%.Oct 17 22:22 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 9,000 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 1.9 units (Dollar, Euro, Pound, etc.), from date: May 01, 2018, to date: May 30, 2018, namely for a period of 29 days if the commission fee (withdrawal or payment) is 0%.Oct 17 22:18 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 12,000 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 12.93 units (Dollar, Euro, Pound, etc.), from date: Jul 01, 2017, to date: Oct 10, 2017, namely for a period of 101 days (3 Months and 9 Days) if the commission fee (withdrawal or payment) is 0%.Oct 17 20:30 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 50,000 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 4 units (Dollar, Euro, Pound, etc.), from date: Nov 15, 2017, to date: Nov 15, 2022, namely for a period of 1,826 days (60 Months) if the commission fee (withdrawal or payment) is 0%.Oct 17 20:18 UTC (GMT)
All annual simple flat interest rates calculated by users


How to calculate / negociate the simple flat interest rate of a principal - initial starting amount of money lent, deposited or borrowed, in order to collect or pay a certain simple flat rate interest by the duration and any additional transaction fees (withdrawal, payment in advance, etc.).

Annual simple flat rate interest formula:

  • I = S × p% × n

  • I = n years simple interest charged
  • S = initial amount (principal)
  • p% = annual simple flat interest rate (percentage of the principal, charged as interest)
  • n = number of years of the lending or borrowing the money
  • Formula of the simple flat interest rate applied on the principal - initial starting amount of money lent, deposited or borrowed, in order to earn a simple flat annual rate:

  • p% = I ÷ (S × n)

Examples of how to calculate the simple flat interest rate on the principal amount in order to earn a certain simple flat rate interest:

  • 1) What is the simple flat interest rate of the principal S = 20,000 units that has to be lent, deposited or borrowed, for a period of n = 5 years, if the simple flat rate interest collected or paid D = 3,500 units?
    Answer:
    p% = I ÷ (S × n) = 3,500 ÷ (20,000 × 5) = 3,500 ÷ 100,000 = 3.5 ÷ 100 = 3.5%
  • 2) What is the simple flat interest rate of a principal S = 5,000 units, that has to be lent, deposited or borrowed, for a period of n = 3 years, if the simple flat rate interest collected or paid D = 300 units?
    Answer:
    p% = I ÷ (S × n) = 300 ÷ (5,000 × 3) = 300 ÷ 15,000 = 3 ÷ 150 = 1 ÷ 50 = 2 ÷ 100 = 2%

Annual simple flat interest rate formula calculated for a period of n years:

  • Simple flat interest rate, p% = I ÷ (S × n)
  • Interest, I = S × p% × n
  • Principal, S = I ÷ (p% × n)
  • Number of years of the period of the deposit, lending or borrowing, n = I ÷ (S × p%)

Formula of the simple flat interest rate of the principal for an annual simple flat rate interest calculated for a period of m months:

  • Simple flat interest rate, p% = (12 × I) ÷ (S × m)
  • Interest, I = (S × p% × m) ÷ 12
  • Principal, S = (12 × I) ÷ (p% × m)
  • Number of months of the period, m = (12 × I) ÷ (S × p%)

Formula of the simple flat interest rate of a principal for an annual simple flat rate interest calculated for a period of d days:

  • Simple flat interest rate, p% = (365 × I) ÷ (S × d)
  • Interest, I = (S × p% × d) ÷ 365
  • Principal, S = (365 × I) ÷ (p% × d)
  • Number of days of the period, d = (365 × I) ÷ (S × p%)

More examples of how the simple flat interest rate of a principal for a simple flat rate interest formula works:

  • 1) Calculate the simple flat interest rate of the initial amount S = 400 units that would generate a simple flat rate interest I = 6.67 units in m = 5 months.
    Answer:
    p% = (12 × I) ÷ (S × m) = (12 × 6.67) ÷ (400 × 5) = (12 × 6.67) ÷ 2,000 = 80 ÷ 2,000 = 4%
  • 2) Calculate the simple flat interest rate of the initial amount S = 400 units that would generate a simple flat rate interest I = 7.5 units in m = 5 months.
    Answer:
    p% = (12 × I) ÷ (S × m) = (12 × 7.5) ÷ (400 × 5) = 90 ÷ 2,000 = 4.5%.